The following lists events that happened during 1792 in Australia.

• Monarch - George III
• Governor of New South Wales – Captain Arthur Phillip
• Lieutenant-Governor of Norfolk Island – Philip Gidley King
• Commanding officer of the New South Wales Corps – Francis Grose

• 14 February – Sydney's first retail shop opens.
• 23 April – The French d'Entrecasteaux expedition, consisting of frigates Recherche and Espérance, land at Recherche Bay, Tasmania to rewater and rest.
• 28 May – d'Entrecasteaux expedition leaves Tasmania and sails into the Pacific to search for La Pérouse.
• 14 July – The Home Secretary authorises Phillip to make land grants to civil and military officers.
• 1 November – The Philadelphia becomes the first foreign trading vessel to visit Sydney.
• December – d'Entrecasteaux expedition makes land near Cape Leeuwin and explores south coast of Western Australia.
• 10 December – With the colony beginning to flourish, Phillip is granted leave and permitted to return to England. He leaves on the Atlantic, taking Bennelong and Yemmerrawanne with him, and retires to a quiet life in Bath. While the British government decides on a replacement, Francis Grose (the commanding officer of the New South Wales Corps) takes control as Acting Governor.
• 11 December – Francis Grose officially takes up his role as Administrator
• 24 December – The American ship Hope arrives in Sydney; Grose is forced to buy alcohol to obtain other cargo.

• 9 March – Robert Johnston
• 16 June – Major Sir Thomas Livingston Mitchell surveyor and explorer.
• 20 October – John Pascoe Fawkner

• Barker, Anthony (1996). What Happened When. St Leonards: Allen & Unwin. ISBN 978-1-86373-986-3.
• National Library of Australia. "The World Upside Down: Australia 1788 – 1830". Archived from the original on 20 March 2007. Retrieved 9 February 2007.